Package org.hibernate.type.descriptor.java

Class BlobJavaType

java.lang.Object

org.hibernate.type.descriptor.java.AbstractClassJavaType<Blob>

org.hibernate.type.descriptor.java.BlobJavaType

All Implemented Interfaces:

Serializable, BasicJavaType<Blob>, JavaType<Blob>

public class BlobJavaType
extends AbstractClassJavaType<Blob>

Descriptor for Blob handling.

Note, Blobs really are mutable (their internal state can in fact be mutated). We simply treat them as immutable because we cannot properly check them for changes nor deep copy them.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BlobJavaType.BlobMutabilityPlan

Nested classes/interfaces inherited from interface org.hibernate.type.descriptor.java.JavaType

JavaType.CoercionContext

Field Summary

Fields

Modifier and Type	Field	Description
static final BlobJavaType	INSTANCE

Constructor Summary

Constructors

Constructor	Description
BlobJavaType()

Method Summary

Modifier and Type	Method	Description
boolean	areEqual(Blob one, Blob another)	Determine if two instances are equal
int	extractHashCode(Blob value)	Extract a proper hash code for the given value.
String	extractLoggableRepresentation(Blob value)	Extract a loggable representation of the given value.
Blob	fromString(CharSequence string)
long	getDefaultSqlLength(Dialect dialect, JdbcType jdbcType)	The default column length when this Java type is mapped to a SQL data type which is parametrized by length, for example Types.VARCHAR.
Blob	getReplacement(Blob original, Blob target, SharedSessionContractImplementor session)
String	toString(Blob value)
<X> X	unwrap(Blob value, Class<X> type, WrapperOptions options)	Unwrap an instance of our handled Java type into the requested type.
<X> Blob	wrap(X value, WrapperOptions options)	Wrap a value as our handled Java type.

Methods inherited from class org.hibernate.type.descriptor.java.AbstractClassJavaType

getComparator, getJavaType, getJavaTypeClass, getMutabilityPlan, unknownUnwrap, unknownWrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.hibernate.type.descriptor.java.BasicJavaType

getRecommendedJdbcType

Methods inherited from interface org.hibernate.type.descriptor.java.JavaType

appendEncodedString, coerce, createJavaType, createJavaType, fromEncodedString, getCheckCondition, getDefaultSqlPrecision, getDefaultSqlScale, getDefaultValue, getLongSqlLength, getTypeName, isInstance, isTemporalType, isWider, useObjectEqualsHashCode

Field Details

INSTANCE

public static final BlobJavaType INSTANCE

Constructor Details

BlobJavaType

public BlobJavaType()

Method Details

extractLoggableRepresentation

public String extractLoggableRepresentation(Blob value)

Description copied from interface: JavaType

Extract a loggable representation of the given value.

Specified by:

extractLoggableRepresentation in interface JavaType<Blob>

Overrides:

extractLoggableRepresentation in class AbstractClassJavaType<Blob>

Parameters:

value - The value for which to extract a loggable representation.

Returns:

The loggable representation

toString

public String toString(Blob value)

fromString

public Blob fromString(CharSequence string)

extractHashCode

public int extractHashCode(Blob value)

Description copied from interface: JavaType

Extract a proper hash code for the given value.

Specified by:

extractHashCode in interface JavaType<Blob>

Overrides:

extractHashCode in class AbstractClassJavaType<Blob>

Parameters:

value - The value for which to extract a hash code.

Returns:

The extracted hash code.

areEqual

public boolean areEqual(Blob one,
 Blob another)

Description copied from interface: JavaType

Determine if two instances are equal

Specified by:

areEqual in interface JavaType<Blob>

Overrides:

areEqual in class AbstractClassJavaType<Blob>

Parameters:

one - One instance

another - The other instance

Returns:

True if the two are considered equal; false otherwise.

getReplacement

public Blob getReplacement(Blob original,
 Blob target,
 SharedSessionContractImplementor session)

unwrap

public <X> X unwrap(Blob value,
 Class<X> type,
 WrapperOptions options)

Description copied from interface: JavaType

Unwrap an instance of our handled Java type into the requested type.

As an example, if this is a JavaType<Integer> and we are asked to unwrap the Integer value as a Long, we would return something like Long.valueOf( value.longValue() ).

Intended use is during PreparedStatement binding.

Type Parameters:

X - The conversion type.

Parameters:

value - The value to unwrap

type - The type as which to unwrap

options - The options

Returns:

The unwrapped value.

wrap

public <X> Blob wrap(X value,
 WrapperOptions options)

Description copied from interface: JavaType

Wrap a value as our handled Java type.

Intended use is during ResultSet extraction.

Type Parameters:

X - The conversion type.

Parameters:

value - The value to wrap.

options - The options

Returns:

The wrapped value.

getDefaultSqlLength

public long getDefaultSqlLength(Dialect dialect,
 JdbcType jdbcType)

Description copied from interface: JavaType

The default column length when this Java type is mapped to a SQL data type which is parametrized by length, for example Types.VARCHAR.

Returns:

Size.DEFAULT_LENGTH unless overridden